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» Algorithms for subsequence combinatorics
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COCOON
2006
Springer
15 years 6 months ago
Characterizations and Linear Time Recognition of Helly Circular-Arc Graphs
Abstract. A circular-arc model (C, A) is a circle C together with a collection A of arcs of C. If A satisfies the Helly Property then (C, A) is a Helly circular-arc model. A (Helly...
Min Chih Lin, Jayme Luiz Szwarcfiter
CPM
2006
Springer
95views Combinatorics» more  CPM 2006»
15 years 6 months ago
New Bounds for Motif Finding in Strong Instances
Many algorithms for motif finding that are commonly used in bioinformatics start by sampling r potential motif occurrences from n input sequences. The motif is derived from these s...
Brona Brejová, Daniel G. Brown, Ian M. Harr...
COCOON
2010
Springer
15 years 6 months ago
A Three-String Approach to the Closest String Problem
Given a set of n strings of length L and a radius d, the closest string problem (CSP for short) asks for a string tsol that is within a Hamming distance of d to each of the given ...
Zhi-Zhong Chen, Bin Ma, Lusheng Wang
STOC
2001
ACM
139views Algorithms» more  STOC 2001»
16 years 3 months ago
Approximate distance oracles
Let G = (V, E) be an undirected weighted graph with |V | = n and |E| = m. Let k 1 be an integer. We show that G = (V, E) can be preprocessed in O(kmn1/k ) expected time, construc...
Mikkel Thorup, Uri Zwick
ICIAP
2001
Springer
16 years 3 months ago
Automatic Features Detection for Overlapping Face Images on their 3D Range Models
We describe an algorithm for the automatic features detection in 2D color images of human faces. The algorithm proceeds with subsequent refinements. First, it identifies the sub-i...
Raffaella Lanzarotti, Paola Campadelli, N. Alberto...